I think the difference between Marcy and Anne is subtle. Marcy's responsibilities are shoved on her, always impossible to reach or achieve, and so she believes deep down that she isn't good enough and never will be. There's a lot of hopelessness: no point in asking for help since no one can help her, no point in trying to fix things at home because no one will listen, no point in holding onto Anne and Sasha because if there's one constant it's that Marcy always fails. Then the hope in Amphibia becomes addictive, this sort of lifeline for her.
Anne doesn't have impossible tasks forced on her, she chooses them. She assumes responsibility for certain things at certain times, whether that be keeping her friend group together or defeating an evil king. She always believes not only that she has to do it but she will do it. That's where her laziness comes in: the outcome is a guarantee to her, so it's a matter of WHEN it will happen, not if. However, once Marcy dies her list becomes much steeper and harder to attain, since she realizes that not everything works out eventually. However, her "denial" over Marcy is just consistent with her pattern of believing things will be okay.
It really comes down to their socioeconomic statuses.
Marcy is poor, so she believes that she will not get what she wants.
Therefore, she tends to reach for low hanging fruit, easy validation. Do well at the First Temple because that's something that can be won. Play video games because that gives her an easy "you won!" But she also has a tendency to choose large goals that can't be reached, as if she's afraid to risk the idea of failing a goal. Striving for Sasha's genuine positive regard. Sending her friends to Amphibia so they can go on adventures together. Picking either really easy or really hard things steers her away from the middle ground she fears so greatly. Because those are things that most people should be able to do, and what would she be if she failed? Standing up to her parents. Working out long distance with Anne and Sasha. Because those are goals she could get, but she can't, because Marcy believes that she generally doesn't get what she wants. The only time she genuinely hopes for something is in Amphibia, a hope that is shattered by Andrias.
Anne is middle class, so she believes things will naturally come to her.
As is typical of middle class. I basically explained this in the previous post.
Sasha is rich, so she fears she will lose what she already has.
This is part of why she seeks control, is so that she can make sure she won't lose it. When you're at the top, the only way to go is down--therefore Sasha has a lot of insecurity about losing things. Therefore a good way to manipulate her is to play threaten what she values, as we saw Andrias do: overhearing that Anne and Marcy were getting by without her, seeing Anne and Marcy conspire with the king she wanted to take down. That's why she reacts so badly to not having an opinion, not having friends, not having fun with this place, not having first place in the battle of the bands--she fears not having what she knows she can have.
Anne tends to straddle two worlds: gain and loss. While Marcy and Sasha pick one or the other.
That's part of why she's good at compartmentalizing: she doesn't really belong to either world in the way that everyone else does, so she has different modes. Amphibia or Earth. Thai-American home life or American-Thai school life. Dead friends who she needs to save or happy family that she can heal in. Anne contains multitudes, and the deep-seated belief that she has to pick a side.











